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https://gitlab.com/pulsechaincom/erigon-pulse.git
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77a4b3305d
* ReadBlockByNumber and ReadChainConfig return error * Let's make rawdb package to return error. But by small steps. High-level methods need to move first: ReadBlockByNumber ReadChainConfig ReadBlockByHash ReadHeaderByHash WriteChainConfig WriteDatabaseVersion WriteBlock DeleteTd WriteTd ReadTd
107 lines
3.5 KiB
Go
107 lines
3.5 KiB
Go
// Copyright 2018 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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package rawdb
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import (
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"encoding/json"
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"errors"
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"fmt"
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"github.com/ledgerwatch/turbo-geth/common/dbutils"
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"github.com/ledgerwatch/turbo-geth/ethdb"
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"github.com/ledgerwatch/turbo-geth/common"
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"github.com/ledgerwatch/turbo-geth/log"
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"github.com/ledgerwatch/turbo-geth/params"
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"github.com/ledgerwatch/turbo-geth/rlp"
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)
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// ReadDatabaseVersion retrieves the version number of the database.
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func ReadDatabaseVersion(db DatabaseReader) *uint64 {
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var version uint64
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enc, _ := db.Get(dbutils.DatabaseVerisionKey, []byte(dbutils.DatabaseVerisionKey))
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if len(enc) == 0 {
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return nil
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}
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if err := rlp.DecodeBytes(enc, &version); err != nil {
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return nil
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}
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return &version
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}
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// WriteDatabaseVersion stores the version number of the database
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func WriteDatabaseVersion(db DatabaseWriter, version uint64) error {
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enc, err := rlp.EncodeToBytes(version)
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if err != nil {
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return fmt.Errorf("failed to encode database version: %w", err)
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}
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if err = db.Put(dbutils.DatabaseVerisionKey, []byte(dbutils.DatabaseVerisionKey), enc); err != nil {
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return fmt.Errorf("failed to store the database version: %w", err)
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}
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return nil
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}
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// ReadChainConfig retrieves the consensus settings based on the given genesis hash.
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func ReadChainConfig(db DatabaseReader, hash common.Hash) (*params.ChainConfig, error) {
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data, err := db.Get(dbutils.ConfigPrefix, hash[:])
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if err != nil && errors.Is(err, ethdb.ErrKeyNotFound) {
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return nil, err
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}
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if len(data) == 0 {
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return nil, nil
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}
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var config params.ChainConfig
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if err := json.Unmarshal(data, &config); err != nil {
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return nil, fmt.Errorf("invalid chain config JSON: %x, %w", hash, err)
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}
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return &config, nil
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}
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// WriteChainConfig writes the chain config settings to the database.
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func WriteChainConfig(db DatabaseWriter, hash common.Hash, cfg *params.ChainConfig) error {
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if cfg == nil {
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return nil
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}
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data, err := json.Marshal(cfg)
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if err != nil {
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return fmt.Errorf("failed to JSON encode chain config: %w", err)
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}
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if err := db.Put(dbutils.ConfigPrefix, hash[:], data); err != nil {
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return fmt.Errorf("failed to store chain config: %w", err)
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}
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return nil
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}
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// ReadPreimage retrieves a single preimage of the provided hash.
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func ReadPreimage(db DatabaseReader, hash common.Hash) []byte {
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data, _ := db.Get(dbutils.PreimagePrefix, hash.Bytes())
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return data
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}
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// WritePreimages writes the provided set of preimages to the database.
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func WritePreimages(db DatabaseWriter, preimages map[common.Hash][]byte) {
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for hash, preimage := range preimages {
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if err := db.Put(dbutils.PreimagePrefix, hash.Bytes(), preimage); err != nil {
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log.Crit("Failed to store trie preimage", "err", err)
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}
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}
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dbutils.PreimageCounter.Inc(int64(len(preimages)))
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dbutils.PreimageHitCounter.Inc(int64(len(preimages)))
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}
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